Applications are typically built once (in JAR or WAR) and then deployed into multiple environments. The following figure shows some of the different environments an application can be deployed to:
In each of the preceding environments, an application typically has the following:
Connections to databases
Connections to multiple services
Specific environment configurations
It is a good practice to externalize configurations that change between different environments into a configuration file or database.
Spring Boot provides a flexible, standardized approach for externalized configuration.
In this section, we will look at the following:
How can properties from
application.propertiesbe used inside our services?How do type-safe Configuration Properties make application configuration a cakewalk?
What kind of support does Spring Boot provide for Spring Profiles?
How can you configure properties in
application.properties?
In Spring Boot, application.properties is the default file...